A method and device for treating flue gas containing nitrogen oxides
A nitrogen oxide and flue gas technology, applied in microorganism-based methods, chemical instruments and methods, biochemical cleaning devices, etc., can solve the problems of ammonia escape, pollution, and high investment costs, achieve efficient removal, avoid poisoning, The effect of improving carbon sequestration efficiency
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Embodiment 1
[0042] (1) In a 10L photobioreactor, add 6L of the prepared microalgae medium, adjust the pH of the microalgae medium to 10 with NaOH, and insert 0.9L of Chlorella kessleri FSH-Y3 seed solution for cultivation. Into the flue gas, CO in the flue gas 2 The content of NO is 5v%, the NO content is 0.03v%, and the ventilation volume is 0.5vvm. The light intensity of the culture was 5000 Lux, the culture temperature was 25 °C, the light period was 24 h, and the light-dark time ratio was 14:10. In the collected exhaust gas, CO 2 The removal rate is 85%, and the NO removal rate is 80%.
[0043] (2) After culturing for 5 days, the microalgal cells and filtrate were harvested by centrifugation. Dry cell weight and lipid content were determined. The dry weight of algal powder was measured after vacuum freeze-drying to constant weight at -60°C, the biomass yield was calculated, and the total lipid content was measured by the n-hexane:ethyl acetate method. After testing, the dry cell ...
Embodiment 2
[0046] (1) In a 10L photobioreactor, add 6L of the prepared microalgae medium, adjust the pH of the microalgae medium to 11 with NaOH, and insert 1.0L of Chlorella kessleri FSH-Y3 seed solution for cultivation. Into the flue gas, CO in the flue gas 2 The content of NO is 10v%, the NO content is 0.05v%, and the ventilation volume is 0.5vvm. The light intensity of the culture was 5000 Lux, the culture temperature was 25 °C, the light period was 24 h, and the light-dark time ratio was 14:10. CO collected in exhaust gas 2 The removal rate is 80%, and the NO removal rate is 75%.
[0047] (2) After 6 days of culture, microalgal cells and filtrate were harvested by centrifugation. Dry cell weight and lipid content were determined. The dry weight of algal powder was measured after vacuum freeze-drying to constant weight at -60°C, the biomass yield was calculated, and the total lipid content was measured by the n-hexane:ethyl acetate method. After testing, the dry cell weight can ...
Embodiment 3
[0050] (1) In a 10L photobioreactor, add 6L of the prepared microalgae medium, adjust the pH of the microalgae medium to 12 with NaOH, and insert 1.2L of Chlorella kessleri FSH-Y3 seed solution for cultivation. Into the flue gas, CO in the flue gas 2 The content of NO is 40v%, the NO content is 0.05v%, and the ventilation volume is 0.3vvm. The light intensity of the culture was 5000 Lux, the culture temperature was 25 °C, the light period was 24 h, and the light-dark time ratio was 14:10. CO collected in exhaust gas 2 The removal rate is 60%, and the NO removal rate is 75%.
[0051] (2) After 6 days of culture, microalgal cells and filtrate were harvested by centrifugation. Dry cell weight and lipid content were determined. The dry weight of algal powder was measured after vacuum freeze-drying to constant weight at -60°C, the biomass yield was calculated, and the total lipid content was measured by the n-hexane:ethyl acetate method. After testing, the cell dry weight can ...
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